Tractor hitch



April 20 v1926. 1,581,272

E. KUMMER TRACTOR HIT'GH Filed Feb. 2z, 1924 Gttor nu,

Patented .Ann i2Q, i926. p

UNITED STATES v1,5a1.,?n

gPATENT OFFICE.

yEnv/'annKurrlvrnraor JUNCTION CITY, KANSAS.

TRACTOR HITCvI-I.

Application filed February 23, 1924. Serial No. 694,733.

p To all whom t may concern.'

Be Vit known that I, EDWARD .KUMMnIn a citizen of the United Statesof America, and

'resident of JunctionCity, in' thecounty of Geary and State of Kansas, have invented line 4-4 of Fig. 1.

certain new and useful' Improvements in Tractor Hitches, of which the following is a specification. Y

T his invention relates to bitches foi` trailers, andhas reference more particularly to a hitch for connecting a plow to a tractor. It is an object of this invention to produce v a device interposed between the tractor and the load, whereby allowance is made for a certain amount of lateral movementof thc the operation of the said tractor and plow when they areconnected together. Y

Vith the foregoing andother objectsin View, the invention consists in the'details of construction, and in the arrangement,V and combination of lparts to be hereinafter more fully set forth and claimed. p Inv describing the invention in detail, reference will be had to the accompanying drawings forming -part of this application.-

wherein like characters denote corresponding parts in the several views, and in which- Figure 1 illustrates a plan view of a hitch embodying the invention;

. Figure 2 illustrates a sectional view on the .f

line 2-2 of Fig. 1; Figure 3 illustrates an enlarged Vdetail view of a roller and parts associated with it;

Figure 4; illustrates a sectional view on the In these drawings, 5 denotes a drawbar having a suitable coupling-device by which it may be attached to a tractor, as at 6, the said drawbar, in the present embodiment of the invention, being provided withapertures 7 to receive bolts 7 a in order that the drawi bar may be adjusted to increase ordiminish the distance between the tractor andthe load, The drawbar. is maintained between two strips of metal 8 and 9 thathave a plurality of coinciding apertures 10 in order spring 20 atA their respective ends of the beam.l Thefacingstrip has a convex sur that the same may be brought `into alinement with the apertures of the drawbar for changing the position ofthe drawbar with relation to the said strips. The strips are separated at their rear ends and are'held in spaced frelation to each other'by a sleeve 11 and a bolt Y 12 in order'that'the said strips mayv straddle a beam 13 and move longitudinally `of ,the beam, as will presently appear. A Y

The beamis embraced at its edges'by facingstrips 14 and 15 having. angularly disvposedends 16 and 17 respectively, and these ends 16 and 17 vlie parallel with eachother and are connected together by an eye bolt 18. v The construction is identical at the two ends of the beam and the eye bolts are intendedv anchorages for a chain .19 and a` face and itY acts as a track or bearing on which a grooved wheel 21y may ride or travel.

The wheel is interposed between the diverging ends of the stripv and is rotat ed ona spindle or shaft 22. i

ably mount 'i A .yoke 23is oscillatable on the member j V22 between the diverging ends of the strips,

and one end of the spring V is connected to thel said yoke and an'end ofthe chain 19a yisfconnected to the yoke onthe opposite side 8 of the member 22.

. A plate 24 is mounted on a bolt or the like `2.5 in the drawbar, andthe saidfplate is aperturedto receive the endsof chains`26 and 27'` that have their opposite ends lconnected to the beam in suitable manner, as by aper- K tured plates and the bolts 28.

A' coupling `bar 29 has suitable Lmeans such as 30 bywhich it is attached tov a plow or trailer, and this bar 29 isfpivotally connected at one end to the beam 13 by means of the elements' 31, which Vare inthe nature of metal plates or strips, that are anchoredV tothe bar r29and mounted'o'n. a pivot 32 ext-ending through' the beam. Thus'the elements 31may oscillate on thepivot 32 to'compensateffor certain movement ofthe tractor and plow independently o-f each other. At

vthe OPpOSite end ofthe bar 29 there isv a connecting plate 33 that has apertures 34 The plate 33 vis conto receive a bolt 35.

nectedv' to the beam by a fastening 36 such as a bolt, and through'the employment of the bolt in any one of the apertures 341,v the bar 29V may be adjusted with relation to thelbeam, as will be apparent from an A inspection of the drawing.

The construction of the crawbar may, of course bechanged as to the elements comarising' it, since the invention relates more particiilarly to the mechanism by which movement is attorded the drawbar with respect to the beam, and the mechanism .by which the coupling` bar has movement independently ot the beam and the drawbar.

lVhile reference has been made to the connections being at the ends ot the beam or in certain tilted relation to the beam, it is understood that if tne connection is made substantially at the ond ot the beam, it will answer the purpose ot the invention.

It is the purpose ot the inventor that the elements 26 and that are connected to the drawhar between its ends and to the beams near their ends may comprise chains or link connections, but they are removably applied to the device in order that they inay be detached and omitted while the plowing operation is being conducted. These elements are` of utility in moving` the tractor hitch upon the row or vfrom one location to another.

It will also be understood that in operation the chain 19 is adjustable the beam and is intended to control the amount of land cut or the width of the swaths ot' the plows. The spring 2O is employed as an equalizer when the tractor is making a turn during' the plowingoperation, as at the ends of the field being plowed or on the corners where turns are made. The spring` is also ot utility, should, the plows encounter obstructions snch as stumps or rocks and also when turns are made, as the spring' is ot sach strength that it acts to restore the beam to its normal position to the width of the swath ined by the chain 1921. For example, it eight plows are being-used and four ot the plows on the 'right hand sideencounter i stone, root or other obstruction so that the course oil the plows is momentarily deflected from the course in which it is desired that they shonld go, when the obstruction passed or removed, the spring)r always brings the plows back to 'their course and malice the swath vor widths ot the turrows practically nnitorm.

I claim:

1. in a tractor hitch, a transverse beam, a drawbar, a resilient connection between the inner end oi the drawbar and one end ot the beam, a non-stretchable connection between the innir end ot the drawbar and the opposite end of the beam, and a hitch pivotally connected to the beam at one end and adjustable at the other end, and .means adapted to connect the beam to the load.

2. ln a tractor hitch, a beam, a drawbar, detachable connections from the drawbar between its ends to substantially the ends of the beam, a resilient connection between the inner end of the draiifbar and one end of the beam, a non-stretchable connection between the inner end oif the drawbar and the opposite end ot the beam, and a hitch tor connecting` the dra wbar to the load.

9. ln a tractor hitch, a beam, a drawbar, detachable connections from the drawbar between its ends to substantially the ends ot the beam, a resilient connection l etween the inner end ot the drawbar and one end oit the beam, a nonestretchable connection between the. inner end oi the drawbar and the opposite end oit the beam, and a hitchl 'drawbar which extends forwardly therefrom, a resilient connection between the drawbar and one end of the beam, a non-stretch able connection between the end ot the drawbar and the opposite end et the beam, and a bar pivotally connected at one end to the beam and -adjustably connected thereto at its opposite end.

5.111 a tractor hitch, a transverse beam having attached thereto a guide rail, a dran74 bar having a roller for engagement with the guide rail, a resilient connection between one end ot' the drawbar and one end of the beam, a non-stretchable connection between the end ot the drawbar and the opposite end of the beam, and adjustable means associated with the beam and maintained rearward thereof, said beam having means for connecting; it Vto a plow.

6. In a tractor hitch, a beam, a drawbar, aresilient connection between one end of the drawbar and one end of the beam, a non-stretchable connection between the end ot the drawbar and the opposite end of the beam, a couplingl bar to which aplow may be connected, and means oscillatably mounted on the beam tor connecting` the couplingl bar to the beam.

RDX/VA, Rl) u Klflli/IB'IER tit) 

